Merge branch 'dev' into minewsemi-refactor

variants/minewsemi_me25ls01/platformio.ini

@@ -145,3 +145,7 @@ build_src_filter = ${me25ls01.build_src_filter}
   +<../examples/companion_radio/*.cpp>
   +<../examples/companion_radio/ui-orig/*.cpp>
 
+[env:Minewsemi_me25ls01_kiss_modem]
+extends = me25ls01
+build_src_filter = ${me25ls01.build_src_filter}
+  +<../examples/kiss_modem/>

variants/minewsemi_me25ls01/target.cpp

@@ -86,6 +86,7 @@ void radio_set_params(float freq, float bw, uint8_t sf, uint8_t cr) {
   radio.setSpreadingFactor(sf);
   radio.setBandwidth(bw);
   radio.setCodingRate(cr);
+  radio_driver.updatePreamble(sf);
 }
 
 void radio_set_tx_power(int8_t dbm) {